spi: spidev: Completely disable the spidev warning

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

An alternative strategy would be to use "rpi,spidev" instead, but that
would require many Raspberry Pi Device Tree changes.
Signed-off-by: NPhil Elwell <phil@raspberrypi.org>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/spi/spidev.c

@@ -732,7 +732,7 @@ static int spidev_probe(struct spi_device *spi)
 	 * compatible string, it is a Linux implementation thing
 	 * rather than a description of the hardware.
 	 */
-	WARN(spi->dev.of_node &&
+	WARN(0 && spi->dev.of_node &&
 	     of_device_is_compatible(spi->dev.of_node, "spidev"),
 	     "%pOF: buggy DT: spidev listed directly in DT\n", spi->dev.of_node);